Analyzing the ECW Format Lifecycle
This whitepaper is intended for technical developers using the ERDAS ECW/JP2 SDK, and addresses questions about Intergraph®’s Enhanced Compressed Wavelet (ECW) image compression technology.
For effective management of raster datasets, compressed imagery must be able to provide fast encoding and decoding speeds, small file sizes and superior image quality. Where customers seek to balance or perhaps prioritize one characteristic, however, it’s critical to understand how each impact the others. For example compressing to a high target ratio might save an organization tens of thousands of dollars in storage costs, however at what cost to image quality? Read on to understand the intrinsic link between characteristics, demonstrated by testing compression algorithms to different degrees. The test results found within this document strongly highlight ECW’s strengths and weaknesses, and ultimately will enable customers to better understand their own ideal ECW format lifecycle.
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ERDAS APOLLO PERFORMANCE BENCHMARK
This whitepaper contrasts the performance characteristics serving the Enhanced Compressed Wavelet (ECW) file format from ERDAS APOLLO against Esri® ArcGIS for Server.